Cognomen Kiyas (Kiyas 
, Кияс 
, Киясь ) , worldwide, is quite a rare surname. The last name Kiyas is habitual in Sri Lanka, where it is quite a rare surname, Qatar, and Kuwait, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Sri Lanka, Saudi Arabia, and Qatar. Likewise, Kiyas is the forename as well as the last name.